diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0d264e88..3cc758b6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,8 @@ Note: In this file, do not use the hard wrap in the middle of a sentence for com
 
 ## [Unreleased]
 
+## [2.20.4] - 2023-10-17
+
 - Update `cargo-udeps@latest` to 0.1.43.
 
 ## [2.20.3] - 2023-10-12
@@ -1303,7 +1305,8 @@ Note: This release is considered a breaking change because installing on version
 
 Initial release
 
-[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.20.3...HEAD
+[Unreleased]: https://github.com/taiki-e/install-action/compare/v2.20.4...HEAD
+[2.20.4]: https://github.com/taiki-e/install-action/compare/v2.20.3...v2.20.4
 [2.20.3]: https://github.com/taiki-e/install-action/compare/v2.20.2...v2.20.3
 [2.20.2]: https://github.com/taiki-e/install-action/compare/v2.20.1...v2.20.2
 [2.20.1]: https://github.com/taiki-e/install-action/compare/v2.20.0...v2.20.1